Multifunctional integrated cleaning nozzle for train tanker and related use method

Abstract

The invention discloses a multifunctional integrated cleaning nozzle for a train tanker and a related use method. The spray head can be connected with a steam tank washing machine and comprises a steam hot air conveying pipe, a liquid conveying pipe, a sealing cover and a monitoring device, the liquid conveying pipe can penetrate through the sealing cover to stretch into the bottom of the tank car so as to suck out liquid in the tank car. The steam and hot air conveying pipe can be connected with the steam steaming and washing device and the hot air drying device and can penetrate through the sealing cover to extend into the tank car so as to introduce steam and hot air into the tank car. The monitoring device is connected with a control panel of the steam tank washer; the monitoring device comprises an oil-in-water analyzer and a gas analyzer; the oil-in-water analyzer is used for analyzing the oil content of liquid in the tank car and feeding back an oil content analysis result to the control panel; the gas analyzer is used for analyzing gas in the tank car and feeding back an analysis result to the control panel; according to the spray head, sealed steam washing is achieved, waste gas emission is reduced, the washing effect is improved, and the working environment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tanker cleaning, and in particular to a multifunctional integrated cleaning nozzle for a train tanker and a related use method. Background Art

[0002] The sources of volatile organic compounds and toxic and harmful gases mainly include tank areas, sewage pools, loading platforms and tank washing facilities. In particular, when there is steam blowing and steam washing, a large amount of organic pollutants escape from the above production sites, and the release concentration is about 50mg~300g / m 3 .

[0003] The manual open steam cleaning method of tank trucks will cause a large amount of waste gas to escape. The volatile emission of waste gas not only affects the health of operators, but also affects the atmospheric environment of the entire area. Operators who work in an environment polluted by these substances for a long time may develop diseases of the respiratory system, digestive system, reproductive system, etc., and may also cause body lesions and cancer; the waste gas evaporates into the atmosphere, polluting the surrounding environment and affecting the normal life of surrounding residents. Summary of the invention

[0004] In order to enrich the product types of tank car cleaning nozzles and increase the selection space of tank car cleaning methods, an embodiment of the present invention provides a multifunctional integrated cleaning nozzle for a train tank car and a related method.

[0005] In a first aspect, an embodiment of the present invention provides a multifunctional integrated cleaning nozzle for a train tank car, which can be connected to a steam tank washer, and includes a steam hot air delivery pipe, a liquid delivery pipe, a sealing cover and a monitoring device;

[0006] The sealing cover can cover the manhole on the top of the tank truck;

[0007] The liquid delivery pipe can be connected to the vacuum pump of the steam tank washer and can pass through the sealing cover and extend into the bottom of the tank truck to suck out the liquid in the tank truck;

[0008] The steam and hot air delivery pipe can be connected to the steam washing device and the hot air drying device of the steam tank washing machine, and can pass through the sealing cover and extend into the tank truck to pass steam or hot air into the tank truck;

[0009] The monitoring device is connected to the control panel of the steam can washing machine;

[0010] The monitoring device comprises an oil-in-water analyzer and a gas analyzer disposed on the sealing cover;

[0011] The oil-in-water analyzer is used to analyze the oil content of the liquid in the tank truck after steam cleaning, and can feed back the oil content analysis results to the control panel;

[0012] The gas analyzer is used to analyze the gas in the tank truck and can feed back the gas analysis result to the control panel.

[0013] In one or some optional embodiments, the liquid delivery pipe includes a connected residual liquid connection hose and a central residual liquid pipe;

[0014] The central residual liquid pipe is a vertical pipe that can be connected to the suction port at the bottom of the tank truck;

[0015] The residual liquid connecting hose can be connected to the vacuum pump.

[0016] In one or some optional embodiments, the liquid delivery pipe further includes a first connecting pipe;

[0017] The first connecting pipe is used to connect the residual liquid connecting hose and the central residual liquid pipe.

[0018] In one or some optional embodiments, the steam hot air delivery pipe includes a connected steam hot air sleeve and a steam hot air connecting hose;

[0019] The ends of the steam and hot air connecting hose are respectively provided with a steam joint and a hot air joint; the steam joint is used to connect the steam washing device; the hot air joint is used to connect the hot air drying device;

[0020] The steam hot air sleeve is sleeved on the central residual liquid pipe, and an annular passage is formed between the steam hot air sleeve and the central residual liquid pipe for steam or hot air to flow.

[0021] In one or some optional embodiments, the steam hot air sleeve includes a fixed sleeve, a lifting sleeve and a vertical pipe arranged in sequence from top to bottom;

[0022] The lifting sleeve is connected to the fixed sleeve and fixedly connected to the sealing cover; the lifting sleeve can be lifted and lowered relative to the fixed sleeve to lift or lower the sealing cover;

[0023] The vertical pipe can be placed in the tank truck, the sealing cover is arranged in the manhole state, and the lifting sleeve is connected to the vertical pipe.

[0024] In one or some optional embodiments, the multifunctional integrated cleaning nozzle for a train tank car further comprises a cylinder connected to the lifting sleeve;

[0025] The cylinder is used to drive the lifting sleeve to move up and down.

[0026] In one or some optional embodiments, a spherical connection joint is provided on the upper portion of the sealing cover;

[0027] The spherical connection joint is used to connect the lifting sleeve.

[0028] In one or some optional embodiments, the steam hot air delivery pipe further includes a second connecting pipe;

[0029] The second connecting pipe is used to connect the steam hot air sleeve and the steam hot air connecting hose.

[0030] In one or some optional embodiments, the monitoring device further comprises a humidity sensor;

[0031] The humidity sensor is used to monitor the humidity in the tank truck and can feed back the humidity monitoring result to the control panel.

[0032] In one or some optional embodiments, the monitoring device further comprises a flow sensor;

[0033] The flow sensor is connected to the liquid delivery pipe, and is used to monitor the liquid flow of the liquid delivery pipe, and can feed back the flow monitoring result to the control panel.

[0034] In one or some optional embodiments, the monitoring device further comprises a temperature sensor disposed on the sealing cover;

[0035] The temperature sensor is used to monitor the temperature inside the tank truck and can feed back the temperature monitoring result to the control panel.

[0036] In one or some optional embodiments, the monitoring device further comprises a pressure transmitter disposed on the sealing cover;

[0037] The pressure transmitter is used to monitor the pressure inside the tank truck and can feed back the pressure monitoring result to the control panel.

[0038] In a second aspect, an embodiment of the present invention provides a method for cleaning a train tank car, using the multifunctional integrated cleaning nozzle for a train tank car described in the first aspect, comprising:

[0039] Connecting the multifunctional integrated cleaning nozzle of the train tank car to a steam tank washer;

[0040] Lay the liquid delivery pipe and steam and hot air delivery pipe on the tank truck, and install the sealing cover on the manhole and lock it;

[0041] Start the vacuum pump to completely suck out the residual oil in the tank truck;

[0042] Start the steam cleaning device and introduce steam into the tanker for a preset cleaning time;

[0043] After steam washing is completed, the steam washing device is shut down, the condensed water is completely pumped out by a vacuum pump, the oil content of the condensed water extracted from the tank truck is detected by an oil-in-water analyzer, and the control panel is used to determine whether the oil content of the condensed water is less than a preset oil content threshold;

[0044] If not, restart the steam cleaning device and introduce steam into the tank truck for cleaning until the oil content is less than the preset oil content threshold;

[0045] If yes, lift the sealing cover, start the hot air drying device, and let hot air into the tank truck for drying;

[0046] After drying, the gas in the tank truck is tested by a gas analyzer, and the control panel is used to determine whether the gas content is qualified;

[0047] If not, restart the hot air drying device and introduce hot air into the tank truck until drying is completed and the gas composition content reaches the qualified level.

[0048] The beneficial effects of the above technical solution provided in the embodiments of the present invention include at least:

[0049] The multifunctional integrated cleaning nozzle for train tank cars provided in the embodiment of the present invention can cooperate with a steam tank washer to clean the tank car; by integrating the liquid delivery pipe, the steam hot air delivery pipe and the sealing cover and arranging them on the tank car, bottom oil suction and sealed steam washing are realized, and steam consumption and exhaust gas emissions are reduced, which not only saves energy consumption, but is also beneficial to environmental protection, preventing exhaust gas from polluting the surrounding environment and affecting the health of operators; the tank washing process is monitored by monitoring equipment such as an oil-in-water analyzer and a gas analyzer, and the tank car cleaning status can be fed back to the control panel in time, so that the steam tank washer can be activated and the cleaning process can be automatically adjusted, which greatly improves the degree of automation, shortens the cleaning time, reduces energy consumption, improves the cleaning effect, improves the on-site working environment, and reduces the labor intensity of employees.

[0050] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0051] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0053] Figure 1 It is a front view structural schematic diagram of a multifunctional integrated cleaning nozzle for a train tank car provided in an embodiment of the present invention;

[0054] Figure 2 It is a side view structural schematic diagram of a multifunctional integrated cleaning nozzle for a train tank car provided in an embodiment of the present invention;

[0055] Figure 3 It is a schematic diagram of the structure of the steam and hot air connecting hose provided in an embodiment of the present invention;

[0056] Figure 4 The present invention is a flow chart of a method for cleaning a train tank car provided in an embodiment of the present invention.

[0057] In the figure:

[0058] 1 is a steam hot air delivery pipe, 11 is a steam hot air casing, 111 is a fixed casing, 112 is a lifting casing, 113 is a vertical pipe, 12 is a steam hot air connecting hose, 121 is a steam joint, 122 is a hot air joint, 13 is a second connecting pipe, 131 is a second main pipe, 132 is a second branch pipe, and 14 is a cylinder;

[0059] 2 is a liquid delivery pipe, 21 is a residual liquid connecting hose, 22 is a central residual liquid pipe, 23 is a first connecting pipe, 231 is a first main pipe, 232 is a first branch pipe, and 24 is a swivel joint;

[0060] 3 is a sealing cover, 31 is a spherical connection joint;

[0061] 41 is a gas analyzer, 42 is a humidity sensor, 43 is a temperature sensor, 44 is a pressure transmitter, 5 is a tanker, 51 is a manhole, and 52 is a suction port. DETAILED DESCRIPTION

[0062] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0063] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "far", "near", "front", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0064] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] The inventors have found that the exhaust gas generated and discharged by the steam cleaning tank truck 5 is harmful to the health of the operators and also affects the living environment of residents in the surrounding areas. Reducing the exhaust gas emissions generated by tank cleaning has great practical significance.

[0066] Based on this, an embodiment of the present invention provides a multifunctional integrated cleaning nozzle for a train tank car and a related method, which are described in detail below through specific embodiments.

[0067] Embodiment 1

[0068] The embodiment of the present invention provides a multifunctional integrated cleaning nozzle for a train tank car, which can be connected to a steam tank washing machine (not shown in the figure). Figure 1 and Figure 2 As shown, it includes a steam hot air delivery pipe 1, a liquid delivery pipe 2, a sealing cover 3 and a monitoring device;

[0069] The sealing cover 3 can cover the manhole 51 on the top of the tanker 5;

[0070] The liquid delivery pipe 2 can be connected to a vacuum pump (not shown) of a steam tank washer, and can pass through the sealing cover 3 and extend into the bottom of the tanker 5 to suck out the liquid in the tanker 5;

[0071] The steam and hot air delivery pipe 1 can be connected to the steam washing device (not shown in the figure) and the hot air drying device (not shown in the figure) of the steam tank washing machine, and can pass through the sealing cover 3 and extend into the tank car 5 to pass steam or hot air into the tank car 5;

[0072] The monitoring device is connected to the control panel of the steam can washing machine (not shown in the figure);

[0073] The monitoring device includes an oil-in-water analyzer (not shown) and a gas analyzer 41 disposed on the sealing cover 3;

[0074] An oil-in-water analyzer, used to analyze the oil content of the liquid in the tanker 5 after steam cleaning, and capable of feeding back the oil content analysis results to the control panel;

[0075] The gas analyzer 41 is used to analyze the gas in the tank truck 5 and can feed back the gas analysis result to the control panel.

[0076] In the embodiment of the present invention, when the sealing cover 3 is covered on the manhole 51 on the top of the tank truck 5, the tank truck 5 can be sealed, and the liquid delivery pipe 2 and the steam and hot air delivery pipe 1 pass through the sealing cover 3 and extend into the tank truck 5, so that the tank truck 5 can be cleaned in a sealed state, preventing the exhaust gas generated during the steam cleaning process from escaping, reducing the health risks of the operators, and avoiding environmental pollution.

[0077] In a specific embodiment, referring to Figure 1 and Figure 2 As shown, the liquid delivery pipe 2 includes a connected residual liquid connecting hose 21 and a central residual liquid pipe 22, wherein the central residual liquid pipe 22 is a vertical pipe that can be connected to a suction port 52 disposed at the bottom of the tank truck 5, so as to completely extract the residual liquid or condensed water in the tank truck 5; the residual liquid connecting hose 21 can be connected to the vacuum pump of the steam tank washing machine, thereby realizing the suction of the liquid in the tank truck 5.

[0078] In a specific embodiment, in order to ensure the stable connection between the residual liquid connecting hose 21 and the central residual liquid pipe 22, refer to Figure 1 and Figure 2 As shown, the liquid delivery pipe 2 also includes a first connecting pipe 23. The first connecting pipe 23 is arranged at the top of the central residual liquid pipe 22, and is used to connect the residual liquid connection hose 21 with the central residual liquid pipe 22; the first connecting pipe 23 includes a first main body 231 and a first branch pipe 232 that are connected. The top of the first main body 231 is sealed, and the central residual liquid pipe 22 is connected through the first main body 231, and the residual liquid connection hose 21 is connected through the first branch pipe 232, so that the residual liquid connection hose 21 is connected to the central residual liquid pipe 22, so that the residual liquid connection hose 21 can be connected to the side of the central residual liquid pipe 22, which is convenient for the smooth delivery of liquid. The first connecting pipe 23 is connected to the residual liquid connection hose 21 through a swivel joint 24.

[0079] In a specific embodiment, referring to Figure 1-Figure 3As shown, the steam hot air delivery pipe 1 includes a connected steam hot air sleeve 11 and a steam hot air connecting hose 12. The steam hot air sleeve 11 is sleeved on the central residual liquid pipe 22, and an annular passage is formed between the steam hot air sleeve 11 and the central residual liquid pipe 22 for steam or hot air to flow, and steam and hot air can enter the tank car 5 from the annular passage. The end of the steam hot air connecting hose 12 is forked, and is respectively provided with a steam joint 121 and a hot air joint 122, the steam joint 121 is used to connect the steam washing device of the steam can washing machine, and the hot air joint 122 is used to connect the hot air drying device of the steam can washing machine.

[0080] In a specific embodiment, in order to ensure the stable connection between the steam hot air sleeve 11 and the steam hot air connecting hose 12, refer to Figure 1 and Figure 2 As shown, the steam hot air delivery pipe 1 also includes a second joint pipe 13. The second joint pipe 13 is arranged on the top of the steam hot air sleeve 11, and is used to connect the steam hot air sleeve 11 with the steam hot air connecting hose 12; the second joint pipe 13 is also sleeved on the central residual liquid pipe 22, and includes a second main pipe body 131 and a second branch pipe 132 that are connected. The top of the second main pipe body 131 is sealed, and the steam hot air sleeve 11 is connected through the second main pipe body 131, and the steam hot air connecting hose 12 is connected through the second branch pipe 132, so that the steam hot air connecting hose 12 is connected to the steam hot air sleeve 11, so that the steam hot air connecting hose 12 can be connected to the side of the steam hot air sleeve 11, which is convenient for the smooth transportation of liquid.

[0081] In a specific embodiment, referring to Figure 1 and Figure 2 As shown, the steam hot air sleeve 11 includes a fixed sleeve 111, a lifting sleeve 112 and a vertical pipe 113 arranged in sequence from top to bottom. The lifting sleeve 112 is connected to the fixed sleeve 111 and fixedly connected to the sealing cover 3; the lifting sleeve 112 can be lifted and lowered relative to the fixed sleeve 111 to lift or lower the sealing cover 3, so that the sealing cover 3 can be opened or closed by lifting and lowering the lifting sleeve 112; during the lifting and lowering process of the lifting sleeve 112, the lifting sleeve 112 always maintains communication with the fixed sleeve 111 and the vertical pipe 113. The vertical pipe 113 can be placed in the tank car 5, and when the sealing cover 3 is covered on the manhole 51, the lifting sleeve 112 is connected to the vertical pipe 113; the bottom of the vertical pipe 113 is provided with an outward-expanding outlet to facilitate the passage of steam or hot air into the tank car 5.

[0082] In a specific embodiment, referring to Figure 1 and Figure 2 As shown, the multifunctional integrated cleaning nozzle for train tank cars also includes a cylinder 14 connected to the lifting sleeve 112, and the cylinder 14 is connected to the control panel of the steam tank washing machine. The cylinder 14 can be controlled by the control panel to drive the lifting sleeve 112 to rise and fall.

[0083] In a specific embodiment, referring to Figure 2 As shown, a spherical connection joint 31 is provided on the upper portion of the sealing cover 3 , and the spherical connection joint 31 is used to connect the lifting sleeve 112 to enhance the sealing between the sleeve and the sealing cover 3 .

[0084] In a specific embodiment, the multifunctional integrated cleaning nozzle for the train tank car can be connected to a position adjustment mechanism (not shown in the figure) of the steam tank washing machine, and the position adjustment mechanism can be controlled by the control panel to adjust the position of the multifunctional integrated cleaning nozzle for the train tank car relative to the tank car 5 to complete the overall layout of the multifunctional integrated cleaning nozzle for the train tank car. In this embodiment, the position adjustment mechanism can be a linear rail or a rotary arm.

[0085] In a specific implementation, during the actual tank truck 5 cleaning process, the oil-in-water analyzer analyzes the oil content of the liquid in the tank truck 5 after steam cleaning, and after feeding back the oil content analysis result to the control panel, the control panel can determine whether the oil content is greater than a preset oil content threshold. If it is greater, the steam cleaning device is started to introduce steam into the tank truck 5 to continue cleaning. If it is less, the next step can be performed.

[0086] In a specific implementation, during the actual tank truck 5 cleaning process, the gas analyzer 41 analyzes the gas in the tank truck 5 and feeds back the gas analysis results to the control panel. The control panel can then judge whether the gas composition content is qualified, that is, whether it meets the emission standards. If qualified, it means that the cleaning and drying are completed. If unqualified, it is necessary to start the hot air drying device again to dry the tank truck 5 until the gas detection is qualified.

[0087] In a specific embodiment, the monitoring device also includes a humidity sensor 42, which is arranged on the sealing cover 3, for monitoring the humidity inside the tank truck 5, and can feed back the humidity monitoring results to the control panel; further, the control panel can determine whether the tank truck 5 has been dried according to the humidity monitoring results. If not, the hot air drying device is controlled to continue to introduce hot air into the tank truck 5.

[0088] In a specific embodiment, the monitoring device also includes a flow sensor (not shown in the figure); the flow sensor is connected to the central residual liquid pipe 22, used to monitor the liquid flow of the central residual liquid pipe 22, and can feed back the flow monitoring results to the control panel; further, the control panel can determine whether the liquid in the tank truck 5 is completely pumped out according to the flow monitoring results. If not, the vacuum pump is controlled to continue to suck the liquid in the tank truck 5 until it is completely pumped out.

[0089] In a specific embodiment, referring to Figure 1As shown, the monitoring device also includes a temperature sensor 43 and a pressure transmitter 44 arranged on the sealing cover 3. The temperature sensor 43 is used to monitor the temperature inside the tank truck 5, and can feed back the temperature monitoring result to the control panel; further, the control panel can judge whether the temperature inside the tank truck 5 is over-temperature (i.e., the temperature is greater than the preset temperature threshold) according to the temperature monitoring result. If it is over-temperature, the steam washing device or the hot air drying device is controlled to stop working. The pressure transmitter 44 is used to monitor the pressure inside the tank truck 5, and can feed back the pressure monitoring result to the control panel; further, the control panel can judge whether the pressure inside the tank truck 5 is within the preset pressure range according to the pressure monitoring result. If it is higher than the preset pressure range, the steam washing device is controlled to stop working. When the pressure is lower than the preset pressure range, the steam washing device is controlled to stop starting and continue to pass steam.

[0090] In a specific embodiment, when the tank truck 5 is overheated, an appropriate amount of low-temperature clean water can be introduced into the tank truck 5 through the steam hot air delivery pipe 1 to reduce the temperature inside the tank truck 5 and ensure safe operation of the equipment.

[0091] The multifunctional integrated cleaning nozzle for train tank cars provided in the embodiment of the present invention can cooperate with the steam tank washer to clean the tank car 5; by integrating the liquid delivery pipe 2, the steam hot air delivery pipe 1 and the sealing cover 3 and arranging them on the tank car 5, sealed steam cleaning is achieved, which reduces exhaust gas emissions, is beneficial to environmental protection, prevents exhaust gas from polluting the surrounding environment, and prevents the health of operators from being affected; the tank washing process is monitored by monitoring equipment such as the oil-in-water analyzer and the gas analyzer 41, and the cleaning status of the tank car 5 can be fed back to the control panel in time, so that the steam tank washer is activated and the cleaning process is automatically adjusted, which greatly improves the degree of automation, shortens the cleaning time, reduces energy consumption, improves the cleaning effect, improves the on-site working environment, and reduces the labor intensity of employees.

[0092] In the embodiment of the present invention, the specific process of using the multifunctional integrated cleaning nozzle for a train tank car to clean the tank car 5 may include:

[0093] Connect the multifunctional integrated cleaning nozzle of the train tank car to the steam tank washer, and lay the liquid delivery pipe 2 in the tank car 5;

[0094] Start the control panel of the tank washer, control the position adjustment mechanism through the control panel to align the sealing cover 3 and the manhole 51 of the tanker 5, connect the end of the central residual liquid pipe 22 of the liquid delivery pipe 2 to the suction port 52 at the bottom of the tanker 5, lower the sealing cover 3 until it is pressed on the manhole 51 of the tanker 5, check the airtightness, and control the sealing cover 3 to be locked through the control panel;

[0095] The control panel controls the vacuum pump to start, and the residual oil in the tanker 5 is sucked into the bottom oil tank through the liquid delivery pipe 2. Since the steam tank washer and the tanker 5 are in a closed connection, all the organic waste gas generated enters the waste gas treatment equipment at the rear end of the vacuum pump;

[0096] The residual oil discharge is monitored by a flow sensor, and the monitoring result is fed back to the control panel, which determines whether the residual oil in the tank truck 5 is completely discharged. If not, the vacuum pump is controlled to continue suctioning. If it is completely discharged, the steaming and washing process is automatically entered;

[0097] In the steam cleaning process, the control panel controls the steam steam cleaning device to start, and steam is introduced into the tank car 5 through the steam hot air delivery pipe 1 to steam the inner wall of the tank car 5. The steam cleaning lasts for about 15 to 60 minutes (the specific time can be adjusted according to the actual situation on site). While the steam is being passed, the vacuum pump is started to suck out the condensed water generated by the steam in the tank car 5 through the liquid delivery pipe 2 and discharge it into the residual liquid tank of the steam tank cleaning machine;

[0098] After the preset steaming and washing time is reached, the oil content of the condensed water is detected by the oil-in-water analyzer, and the monitoring result is fed back to the control panel, which determines whether the oil content of the condensed water exceeds the preset oil content threshold. If it exceeds, the steam steaming and washing device is controlled to start again, and steam is introduced into the tank car 5 for steaming and washing;

[0099] The condensate discharge volume is monitored by a flow sensor, and the monitoring result is fed back to the control panel, which determines whether the condensate in the tanker 5 is completely discharged. If not, the vacuum pump is controlled to continue suction. If it is completely discharged, the drying process is automatically entered;

[0100] In the drying process, the control panel controls the hot air drying device to start, and hot air is introduced into the tanker 5 through the steam hot air delivery pipe 1, which lasts for about 30 to 90 minutes (the specific time can be manually adjusted according to the actual situation on site);

[0101] After the preset drying time is reached, the humidity in the tanker 5 is monitored by the humidity sensor 42, and the humidity monitoring result is fed back to the control panel, which determines whether the humidity in the tanker 5 meets the standard (i.e., whether the drying is completed). If not, the hot air drying device is controlled to continue to introduce hot air into the tanker 5 until the humidity meets the standard.

[0102] After the drying is completed, the gas in the tank truck 5 is detected by the gas analyzer 41, the gas component content is analyzed, and the analysis result is fed back to the control panel, which determines whether the gas component content in the tank truck 5 is qualified (i.e., meets the emission standard). If it is unqualified, the steam washing device is controlled to pass hot air into the tank truck 5 again until the gas is qualified;

[0103] After the analysis is qualified, it means that the tank car 5 is cleaned, and the control panel controls the sealing cover 3 to be lifted.

[0104] In the embodiment of the present invention, after the open tank car 5 is cleaned, the position adjustment mechanism is controlled by the control panel to lift the sealing cover 3 and the steam hot air delivery pipe 1 to return them to their initial positions, and the liquid delivery pipe 2 is recovered.

[0105] In the embodiment of the present invention, during the process of introducing steam into the tank truck 5, the temperature and pressure inside the tank truck 5 are continuously detected by the temperature sensor 43 and the pressure transmitter 44, and the temperature monitoring results and the pressure monitoring results are fed back to the control panel. When the temperature and pressure are over-high, the steam cleaning device is controlled to stop working through the control panel. When the pressure is lower than the preset minimum pressure value, the steam cleaning device is controlled to continue working through the control panel.

[0106] In the embodiment of the present invention, the monitoring result of the monitoring device can also be sent to the central control room through the control panel and automatically saved.

[0107] In the embodiment of the present invention, the tank car 5 is cleaned by using the multifunctional integrated cleaning nozzle for the train tank car, which will effectively improve the air quality in the operation area and the surrounding area, reduce air pollution and complaints from nearby residents, and help improve the social image of the enterprise.

[0108] Embodiment 2

[0109] Based on the same inventive concept, the embodiment of the present invention also provides a method for cleaning a train tank car 5, using the multifunctional integrated cleaning nozzle for a train tank car described in the first embodiment, referring to Figure 4 As shown, the following steps are included:

[0110] S101: Connect the multifunctional integrated cleaning nozzle for the train tank car to the steam tank washer;

[0111] S102: Lay the liquid delivery pipe 2 and the steam hot air delivery pipe 1 on the tanker 5, and cover the sealing cover 3 on the manhole 51 and lock it;

[0112] S103: Start the vacuum pump to completely suck out the residual oil in the tanker 5;

[0113] S104: Start the steam washing device to introduce steam into the tank car 5 for a preset washing time;

[0114] S105: After the steam washing is completed, the steam washing device is turned off, the condensed water is completely extracted by a vacuum pump, the oil content of the condensed water extracted from the tanker 5 is detected by an oil-in-water analyzer, and the control panel is used to determine whether the oil content of the condensed water is less than a preset oil content threshold value. If so, step S106 is executed, and if not, step S104 is executed again;

[0115] S106: Lift the sealing cover 3, start the hot air drying device, and introduce hot air into the tank car 5 for a preset time;

[0116] S107: After the drying is completed, the gas in the tanker 5 is detected by the gas analyzer 41, and the control panel is used to determine whether the gas component content is qualified. If not, step S106 is executed again;

[0117] In the embodiment of the present invention, the method for cleaning the train tank car 5 corresponds to the use process of the multifunctional integrated cleaning nozzle for the train tank car in Example 1. The specific implementation process can refer to the specific process of using the multifunctional integrated cleaning nozzle for the train tank car in Example 1 to clean the tank car 5, and the repeated parts will not be repeated.

[0118] Obviously, various changes and modifications may be made to the present invention by those skilled in the art without departing from the spirit and scope of the present invention. The present disclosure is not limited to the precise structure described above and shown in the accompanying drawings, and various changes and modifications may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims. Thus, if these changes and modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these changes and modifications.

Claims

1. A multifunctional integrated cleaning nozzle for a train tank car, which can be connected to a steam tank washing machine, characterized in that: It includes steam hot air delivery pipe, liquid delivery pipe, sealing cover and monitoring device; The sealing cover can cover the manhole on the top of the tank truck; The liquid delivery pipe can be connected to the vacuum pump of the steam tank washer and can pass through the sealing cover and extend into the bottom of the tank truck to suck out the liquid in the tank truck; The steam and hot air delivery pipe can be connected to the steam washing device and the hot air drying device of the steam tank washing machine, and can pass through the sealing cover and extend into the tank truck to pass steam or hot air into the tank truck; The monitoring device is connected to the control panel of the steam can washing machine; The monitoring device comprises an oil-in-water analyzer and a gas analyzer disposed on the sealing cover; The oil-in-water analyzer is used to analyze the oil content of the liquid in the tank truck after steam cleaning, and can feed back the oil content analysis results to the control panel; The gas analyzer is used to analyze the gas in the tank truck and can feed back the gas analysis result to the control panel.

2. The multifunctional integrated cleaning nozzle for a train tank car according to claim 1 is characterized in that: The liquid delivery pipe includes a connected residual liquid connecting hose and a central residual liquid pipe; The central residual liquid pipe is a vertical pipe that can be connected to the suction port at the bottom of the tank truck; The residual liquid connecting hose can be connected to the vacuum pump.

3. The multifunctional integrated cleaning nozzle for a train tank car according to claim 2 is characterized in that: The liquid delivery pipe also includes a first connecting pipe; The first connecting pipe is used to connect the residual liquid connecting hose and the central residual liquid pipe.

4. The multifunctional integrated cleaning nozzle for a train tank car according to claim 2 is characterized in that: The steam hot air delivery pipe comprises a connected steam hot air sleeve and a steam hot air connecting hose; The ends of the steam and hot air connecting hose are respectively provided with a steam joint and a hot air joint; the steam joint is used to connect the steam washing device; the hot air joint is used to connect the hot air drying device; The steam hot air sleeve is sleeved on the central residual liquid pipe, and an annular passage is formed between the steam hot air sleeve and the central residual liquid pipe for steam or hot air to flow.

5. The multifunctional integrated cleaning nozzle for a train tank car according to claim 4 is characterized in that: The steam hot air casing comprises a fixed casing, a lifting casing and a vertical pipe which are arranged in sequence from top to bottom; The lifting sleeve is connected to the fixed sleeve and fixedly connected to the sealing cover; the lifting sleeve can be lifted and lowered relative to the fixed sleeve to lift or lower the sealing cover; The vertical pipe can be placed in the tank truck, the sealing cover is arranged in the manhole state, and the lifting sleeve is connected to the vertical pipe.

6. The multifunctional integrated cleaning nozzle for a train tank car according to claim 5 is characterized in that: The multifunctional integrated cleaning nozzle for a train tank car also includes a cylinder connected to the lifting sleeve; The cylinder is used to drive the lifting sleeve to move up and down.

7. The multifunctional integrated cleaning nozzle for a train tank car according to claim 5, characterized in that: A spherical connection joint is provided on the upper part of the sealing cover; The spherical connection joint is used to connect the lifting sleeve.

8. The multifunctional integrated cleaning nozzle for a train tank car according to claim 4, characterized in that: The steam hot air delivery pipe also includes a second connecting pipe; The second connecting pipe is used to connect the steam hot air sleeve and the steam hot air connecting hose.

9. The multifunctional integrated cleaning nozzle for a train tank car according to claim 1, characterized in that: The monitoring device also includes a humidity sensor; The humidity sensor is used to monitor the humidity in the tank truck and can feed back the humidity monitoring result to the control panel.

10. The multifunctional integrated cleaning nozzle for a train tank car according to claim 1, characterized in that: The monitoring device also includes a flow sensor; The flow sensor is connected to the liquid delivery pipe, and is used to monitor the liquid flow of the liquid delivery pipe, and can feed back the flow monitoring result to the control panel.

11. The multifunctional integrated cleaning nozzle for a train tank car according to claim 1, characterized in that: The monitoring device also includes a temperature sensor disposed on the sealing cover; The temperature sensor is used to monitor the temperature inside the tank truck and can feed back the temperature monitoring result to the control panel.

12. The multifunctional integrated cleaning nozzle for a train tank car according to claim 1, characterized in that: The monitoring device also includes a pressure transmitter disposed on the sealing cover; The pressure transmitter is used to monitor the pressure inside the tank truck and can feed back the pressure monitoring result to the control panel.

13. A method for cleaning a train tank car, characterized in that: The multifunctional integrated cleaning nozzle for a train tank car according to any one of claims 1 to 12 comprises: Connecting the multifunctional integrated cleaning nozzle of the train tank car to a steam tank washer; Lay the liquid delivery pipe and steam and hot air delivery pipe on the tank truck, and install the sealing cover on the manhole and lock it; Start the vacuum pump to completely suck out the residual oil in the tank truck; Start the steam cleaning device and introduce steam into the tanker for a preset cleaning time; After steam washing is completed, the steam washing device is shut down, the condensed water is completely pumped out by a vacuum pump, the oil content of the condensed water extracted from the tank truck is detected by an oil-in-water analyzer, and the control panel is used to determine whether the oil content of the condensed water is less than a preset oil content threshold; If not, restart the steam cleaning device and introduce steam into the tank truck for cleaning until the oil content is less than the preset oil content threshold; If yes, lift the sealing cover, start the hot air drying device, and let hot air into the tank truck for drying; After drying, the gas in the tank truck is tested by a gas analyzer, and the control panel is used to determine whether the gas content is qualified; If not, restart the hot air drying device and introduce hot air into the tank truck until drying is completed and the gas composition content reaches the qualified level.

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